Oil burner



Ma 5, 1925. v 1,536,705

L. DE FLOREZ OIL BURNER Filed Oct. 26, 1922 Patented May 5, 1925.

LUIS DE FLOREZ, or POMFOR-T, CONNECTICUT.

OIL BURNER. Y

Application filed October 26, 1922. Serial No. 596,956.

To all whom it may concern:

Be it known that I, LUIs DE F LOREZ, a citizen of the United States, and a resident of Pomfort, in the county of Wyndham and State of Connecticut, have invented an Improvement in Oil Burners, of which the following is a specification.

My invention relates to an oil burner par ticularly adapted for the heating of a furnace. It may be applied either as shown and described in the accompanying specification and drawings,.or, with slight modifications, to the heating of a variety of furnaces, although I have illustrated and described it in this specification in connection with a domestic heating plant and used as a substitute for coal in connection with the conventional coal burning furnace.

I aim to produce a mechanism of the character described which shall be simple and rugged in construction and thus able to withstand the severe conditions of use to which it may be subjected in thehands of inexperienced users. The device is also adapted to regulation in a simple manner and requires a minimum of care and attention.

In the drawings I have shown:

In Figure 1, a view, partially in section of my improved burner and the apparatus connected therewith;

In Figure 2, a perspective view of my improved burner; and

In Figure 3, a detail of the valve used in connectionwith the fue tank of my improved device.

It will be understood that these drawings are more or less diagrammatic in character and illustrate the principle of the invention and its mode of operation rather than the exact dimensions and relative location of parts. These may be greatly varied without departing from the spirit of my invention and in accordance with the particular requirements of the use to which the apparatus is put.

Referring to Figure 1, I haveshown at 1 a conventional type of domestic heating furnace, having a fire box and provided with the usual doors. In the installation illustrated in the drawings the ash pit door is removed and the burner 2 is placed to discharge into the opening thus formed, being supported in any for instance by the brick pier 3 which surrounds one end of the burner, the arrange- 1n the suitable manner, as

ment being such as to allow a sufiicient distance to permit a'thorough mixing of the gases before entering the furnace.

The burner comprises a fuel receptacle 5 in the form of a relatively shallow pan having its depth decreased at one end as illustrated at 6. The opposite end of the burner contains a receptacle 7 for a relatively large body of oil from which the pan is supplied, said receptacle forming a leg upon which the burner stands. At the end of the burner nearest the furnace I provide two legs 8, thus leaving a space between the legs and under the pan through which the air may be drawn. a

The arrangement is such that a substantially constant level of the fuel is maintained pan as will be hereafter described. i ir inlets 9 are arranged in the top of the burner, through which an air stream is ledin such a manner as to be brought into contact with the fuel in the receptacle 5, and

an air duct 10 is located below the receptacle so that an air stream may be led throu h the air duct 10 to combine with the first mentioned air stream drawn in through the air inlets 9 after it has passed "over the fuel 1n the receptacle. The fuel receptacle and air ducts may be conveniently formed in one iron casting but they may be obviously made of other material and may be built up separately if desired. The upper portion of the burner may be made removable to facilitate cleaning and may be conveniently manipulated by means of a of the burner. Located above the receptacle 5 is a movable cover 11 which may be arranged to slide in ways 12.so as to expose a greater or less amount of the surface of the fuel contained in the receptacle 5 to the action of the air stream passing through inlets 9. The extent to which the air entering the furnace is loaded with combustible material may in this manner be varied, the mixture being made more rich by drawing out the cover 11 thus exposing a greater surface of the oil to the air, and more lean by pushing in the slide 11. The proper mixture may be readily determined by experimentation after observing the character of the'flame produced.

The burner 2 is preferably supplied from a fuel tank 13 which may be conveniently mounted in a supporting frame 14 to rotate on trunnions 15. The tank is provided with a filler cap 25 of conventional form adapted knob at the top to tightly close the tank. A cup 16, located at substantially the same level as the burner 2 and in which the same oil level as the oil level in the receptacle 5 is maintained, is arranged so that rotation of the tank 13 on its trunnions will bring the tank discharge orifice 17 and the tank air vent 18 within the cup. The discharge orifice 17 is connecte to the tank at the bottom of the body of the oil therein when the tank is inverted and the air vent discharges above the level of the oil when the tank is inverted as shown in Fig. 1. The arrangement is such that the level of the oil in the cup 16 is automatically maintained at a substantially constant level (the oil level in the burner is therefore also maintained at substantially the same level) by the sealing of the air vent 18 as the oil in the cup 16 rises.

In order to permit of the easy filling of the tank without spilling the oil contained therein, I provide a valve at the discharge orifice 17 which is shown in detail in Fig. 3. The valve comprises a poppet valve 19 adapted to seat against seat 20 and having a hollow stem as shown at 21. A spring 22 tends to seat the valve, but the arrangement is such that when the tank is inverted into the position shown in Fig. 1 the lower end of the valve 19 bears against the bottom of cup 16, thereby forcing the valve upward a sufiicient distance to enable the upper end of the orifice 21 to clear the valve seat 20. In this manner the oil is permitted to run down through the orifice 21 and-discharge into the cup 16 when the valve is in the position shown in Fig. 3. VVhen', however, the tank is turned to be filled, spring 22 causes the valve to shut off by bringing the upper end of the orifice 21 past the seat 20 and seals the discharge orifice of the tank by seating the upper end of the valve 19 on the seat 20 so that the fit of the valve stem in the valve seat 20 does not have to be depended upon entirely to close the orifice. If desired, a valve guide 23 may be provided and the lower end of the outlet casing may be formed as shown in the drawings to permit the easy discharge of the oil.

The apparatus may be set into operation by igniting the fuel in the receptacle 5 by means of, paper or oil soaked waste or in any other convenient manner. The fire once having been started a draft is created which may be regulated by means of the damper 24 in the smoke pipe of the furnace, which draws the air through the air ducts above and below the fuel receptacle of the burner.

The air passing over the oil becomes charged with hydro-carbon vapors in an amount determined by the position of the slide 11 and is mixed with air drawn through the duct 10. It will be understood that as the burner becomes more highly heated, due to its operation, the fuel in the fuel receptacle 5 is more rapidly volatilized, and that an adjustment of the amount of the surface of such through inlet 9 is therefore necessary. Said adjustment is made by varying the position of the cover 11 as described above. By varying the position of the cover 11 and the draft through the instrumentality of damper 24 a flame of the desired intensity may be readily secured.

In an installation such as that shown in Fig. 1, it is desirable to place the burner exteriorly of the furnace but arranged to discharge into the same through the firing door, it being desirable to allow a space within which mixture of the air streams may take place prior to combustion. The exact position of the burner with respect to the furnace however, must be determined with reference to the particular conditions of use.

What I claim is:

1. In a device of the kind described, an oil burner having a substantially constant level of oil therein, an oil level equalizing tank connected to the burner, a pivoted oil tank having vent and discharge pipes extending into the equalizing tank, the discharge pipe terminating in a casing containing a double seated valve adapted to be held open when in the said equalizing tank and to close when removed from said equalizing tank by the pivoting of the oil tank.

2. In a device of the kind described a fuel burner having a substantially constant level of oil therein, an oil level equalizing tank connected to the burner and a revolvable oil tank having discharge and vent pipes adapted to enter the equalizing tank and feed oil thereto when said oil tank is in the operating position and to remove said vent pipe and discharge pipe from said equalizing tank and to stop the feeding of oil thereto when said oil tank is in the filling position.

3. An oil burner comprising an oil receptacle, means for maintaining a substantially constant level of oil therein said burner comprising a body part, a. cover part and a shutter part, said body part having a shallow portlon and a well portion, said cover part having a plurality of openings therein and said shutter adapted to act between said body part and said cover part to cover or uncover the openings in the cover part.

In testimony whereof, I have signed my name to this specification this 11th day of October, 1922.

LUIS DE FLOREZ.

fuel exposed to the air led I 

